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/*
* This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as published by the
* Free Software Foundation; either version 3 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SIGNAL_HANDLER_H_
#define _SIGNAL_HANDLER_H_
#include <csignal>
#include <mutex>
#include <unordered_set>
namespace Acore
{
/// Handle termination signals
class SignalHandler
{
private:
std::unordered_set<int> _handled;
mutable std::mutex _mutex;
public:
bool handle_signal(int sig, void (*func)(int))
{
std::lock_guard lock(_mutex);
if (_handled.find(sig) != _handled.end())
{
return false;
}
_handled.insert(sig);
signal(sig, func);
return true;
}
~SignalHandler()
{
for (auto const& sig : _handled)
{
signal(sig, nullptr);
}
}
};
}
#endif // _SIGNAL_HANDLER_H_
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